* {
    list-style: none;
    margin: 0;
    padding: 0;
}

.start-game-cover {
    position: absolute;
    top: 0px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2023;
}

.start-game-cover .inner {
    background-color: #fff;
    position: absolute;
    top: 40%;
    left: 50%;
    width: 30%;
    height: 50px;
    line-height: 50px;
    transform: translateX(-50%);
    text-align: center;
}

.box {
    box-sizing: border-box;
    width: 50px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    border: 1px solid #e2e0e0;
    font-size: 13px;
}

.dragon {
    background: url("../images/dragon.png") rgb(245, 245, 245);
    background-size: cover;
}

.angel {
    background: url("../images/angel.png") rgb(245, 245, 245);
    background-size: cover;
}

.princess {
    background: url("../images/medieval.png") rgb(245, 245, 245);
    background-size: cover;
}

.left-hide {
    border-left: 1px solid transparent;
}

.right-hide {
    border-right: 1px solid transparent;
}

.top-hide {
    border-top: 1px solid transparent;
}

.bottom-hide {
    border-bottom: 1px solid transparent;
}

.container {
    margin: 20px auto;
    width: 250px;
    height: 250px;
    display: flex;
    flex-wrap: wrap;
    border: 1px solid #111;
}

#blood {
    padding: 20px;
    margin: 20px auto;
    width: 250px;
}

.active {
    /* background-color: #409EFF;
      color: #FFF; */
    border: 5px solid #409eff;
    line-height: 40px;
}

.active.dragon {
    border: 5px solid red;
}

#control {
    width: 250px;
    margin: 0 auto;
    display: flex;
}

#control .ctl-input {
    outline: none;
    padding-left: 10px;
}

#control .btn {
    outline: none;
    border-color: #409eff;
    color: #fff;
    background-color: #409eff;
    border: #409eff;
    padding: 8px 15px;
    cursor: pointer;
}

.tip {
    position: absolute;
    top: 130px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    width: 300px;
    height: 50px;
    line-height: 50px;
    color: #fff;
    transition: all 1s;
}

.hide {
    opacity: 0;
}

.show {
    opacity: 1;
}

.none{
    display: none;
}